package WeekThree;

import java.util.Scanner;

public class Url {
    public static void main(String[] args) {
        System.out.println("请输入一个域名");
        Scanner scanner = new Scanner(System.in);
        String url = scanner.next();
            if (url.indexOf("www") != -1) {
                System.out.println("此域名为二级域名");
            } else {
                System.out.println("此域名为顶级域名");
            }
    }
}
